Previously, the start and end identifier for union is " {\n" and " }, \n". However the end identifier is not always as expected. " },\n" can also be the end identifier. As a result, variable "randomized" is in incorrect state after union, and fails to identify the later struct members. For example, we can reproduce the issue as follows: crash> task PID: 847 TASK: ffff94f8038f4000 CPU: 72 COMMAND: "khungtaskd" struct task_struct { thread_info = { flags = 2148024320, status = 0, preempt_lazy_count = 0 }, { <the union> }, ... wake_entry = { next = 0x0 }, ... Before patch: crash> task -R wake_entry PID: 847 TASK: ffff94f8038f4000 CPU: 72 COMMAND: "khungtaskd" After patch: crash> task -R wake_entry PID: 847 TASK: ffff94f8038f4000 CPU: 72 COMMAND: "khungtaskd" wake_entry = { next = 0x0 }, Signed-off-by: Tao Liu <ltao(a)redhat.com&gt; --- v1 -> v2: Rewrite the commit log. --- task.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/task.c b/task.c index 071c787..db2abc8 100644 --- a/task.c +++ b/task.c @@ -3436,7 +3436,8 @@ parse_task_thread(int argcnt, char *arglist[], struct task_context *tc) { while (fgets(buf, BUFSIZE, pc->tmpfile)) { if (STREQ(buf, " {\n")) randomized = TRUE; - else if (randomized && STREQ(buf, " }, \n")) + else if (randomized && + (STREQ(buf, " }, \n") || STREQ(buf, " },\n"))) randomized = FALSE; if (strlen(lookfor2)) { -- 2.33.1